Where/When: Downtown Bethesda art galleries. Friday, April 13, from 6 to 9 p.m.
Why Go: It's the second Friday of the month, so that means downtown Bethesda art galleries will keep their doors open late to showcase great local, regional and national artwork. Participating venues include Artworks (7740 Old Georgetown Rd.), California Tortilla (4862 Cordell Ave.), Gallery B (7700 Wisconsin Ave., Suite E), L'Eclat de Verre (7015 Wisconsin Ave.), Upstairs Art Studios (4948 St. Elmo Ave.) and the Waverly Street Gallery (4600 East-West Highway).
Where/When: International Spy Museum (600 F St. NW, Washington, DC). Friday, April 13, from 6 to 11 p.m.
Why Go: Visit the International Spy Museum for the "Spy at Night" experience, which provides visitors with exclusive, after-hours access to the museum's permanent collection and an evening full of intrigue, deception and cocktails (including a complimentary drink).
On April 13, in honor of the 100th anniversary of Japan's gift of cherry trees to Washington, DC, a Ninja troop from Japan will perform a Ninjitsu demonstration. Special "Cherry Blossom" cocktails will be available along with a Ninja-themed scavenger hunt.
Price: General admission: $19.95. Operation Spy at Night: $14.95. Combination General Admission and Operation Spy at Night: $27.95.
Where/When: Ray's Meadow Park (2901 East-West Highway, Chevy Chase, MD). Saturday, April 14, from 9 a.m. to noon.
Why Go: Help clean Rock Creek in the 6th Rock Creek Extreme Cleanup. Meet at Rays Meadow playground (just behind the Or Kodesh synagogue, at the far end of the parking lot) at 9 a.m. for briefing, gloves and bags.
Where/When: 16 Chestnut St., Gaithersburg, MD. Friday and Saturday, April 13 and 14, from 10 a.m. to 6 p.m; and Sunday, April 15, from 10 a.m. to 5 p.m.
Why Go: More than 250 of the nation’s most accomplished craftspeople will sell one-of-a-kind handmade items in functional and decorative pottery, sculpture, glass, jewelry, fashion, wood, metal, furniture, home accessories, photography and fine art. The festival also features gourmet foods, live demonstrations and family entertainment.
Price: Adults: $7 online, $9 at the door. Children under 12: free. Parking: free.
Where/When: Dance Bethesda (8227 Woodmont Ave., Bethesda, MD). Friday, April 13, from 8 to 11 p.m.
Why Go: Enjoy a night of dancing and dessert at Dance Bethesda. Newcomer and intermediate level lessons in the waltz and rumba start at 8 p.m., and the dance party begins at 9 p.m.
Price: $15 per person.